Leviticus 7:3-5

Young's Literal Translation

³ and all its fat he bringeth near out of it, the fat tail, and the fat which is covering the inwards,

⁴ and the two kidneys, and the fat which [is] on them, which [is] on the flanks, and the redundance above the liver (beside the kidneys he doth turn it aside);

⁵ and the priest hath made them a perfume on the altar, a fire-offering to Jehovah; it [is] a guilt-offering.